JPS57132012A - Detector for angle of elevation of boom - Google Patents

Detector for angle of elevation of boom

Info

Publication number
JPS57132012A
JPS57132012A JP1767281A JP1767281A JPS57132012A JP S57132012 A JPS57132012 A JP S57132012A JP 1767281 A JP1767281 A JP 1767281A JP 1767281 A JP1767281 A JP 1767281A JP S57132012 A JPS57132012 A JP S57132012A
Authority
JP
Japan
Prior art keywords
boom
angle
elevation
photodetector
detected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1767281A
Other languages
English (en)
Inventor
Toshio Nishida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP1767281A priority Critical patent/JPS57132012A/ja
Publication of JPS57132012A publication Critical patent/JPS57132012A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
JP1767281A 1981-02-09 1981-02-09 Detector for angle of elevation of boom Pending JPS57132012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1767281A JPS57132012A (en) 1981-02-09 1981-02-09 Detector for angle of elevation of boom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1767281A JPS57132012A (en) 1981-02-09 1981-02-09 Detector for angle of elevation of boom

Publications (1)

Publication Number Publication Date
JPS57132012A true JPS57132012A (en) 1982-08-16

Family

ID=11950342

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1767281A Pending JPS57132012A (en) 1981-02-09 1981-02-09 Detector for angle of elevation of boom

Country Status (1)

Country Link
JP (1) JPS57132012A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0921093A3 (en) * 1997-12-05 1999-06-16 Grove U.S. LLC Luffing angle measurement system
CN112815877A (zh) * 2021-01-06 2021-05-18 长春市春求科技开发有限公司 五轴设备a轴角度位移测量装置及测量标定方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52134468A (en) * 1976-05-04 1977-11-10 Yamamoto Electric Ind Co Ltd Apparatus for measuring oblique angle
JPS54107767A (en) * 1978-02-13 1979-08-23 Dainippon Screen Mfg Incline angle measuring apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52134468A (en) * 1976-05-04 1977-11-10 Yamamoto Electric Ind Co Ltd Apparatus for measuring oblique angle
JPS54107767A (en) * 1978-02-13 1979-08-23 Dainippon Screen Mfg Incline angle measuring apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0921093A3 (en) * 1997-12-05 1999-06-16 Grove U.S. LLC Luffing angle measurement system
US6473715B1 (en) 1997-12-05 2002-10-29 Grove U.S. L.L.C. Luffing angle measurement system
CN112815877A (zh) * 2021-01-06 2021-05-18 长春市春求科技开发有限公司 五轴设备a轴角度位移测量装置及测量标定方法
CN112815877B (zh) * 2021-01-06 2021-08-17 长春市春求科技开发有限公司 五轴设备a轴角度位移测量装置及测量标定方法

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